Machine Features:   Advanced inverter technology. Multifunctional   Self-protection system against high voltage and current   Proper performance in long-term welding using 100% strong fan   The main converter is made of super microcrystalline magnet   Ability to connect to a remote control   Stable arc. Convenient control of welding pool depth     Model MMA 315M Power Voltage (V) 380 ( 3 PH ) Frequency (HZ) 50/60 Efficiency (%) 85 Duty Cycle (%) 60 Max No load Voltage 0-100 Max no load voltage 69 Current range 20 - 315 Rated input current 20 Useable electrode 1.6 - 6 Instalation class F Protection class IP21S Weight (KG) 19.5